Search

CN-122025344-A - Multipolar magnetization device of magnetic ring

CN122025344ACN 122025344 ACN122025344 ACN 122025344ACN-122025344-A

Abstract

The invention belongs to the technical field of magnetizing equipment, and particularly relates to a multipolar magnetizing device of a magnetic ring, which comprises a base, a PLC (programmable logic controller) fixed on the base, a magnetizing assembly, a positioning and transferring assembly and an air cooling and cooling assembly, wherein the magnetizing assembly, the positioning and transferring assembly and the air cooling and cooling assembly are all fixed on the base, and the air cooling and cooling assembly is positioned under the magnetizing assembly and is used for rapidly cooling the magnetizing assembly and the magnetized magnetic ring. The invention can realize quick clamping and high-precision coaxial positioning of the magnetic ring, can adaptively adjust the magnetizing power based on the size of the magnetic ring to ensure the complete directional arrangement of inner and outer magnetic domains, can control the temperature rise of the magnetizing coil within 40 ℃ to ensure the stable magnetic field parameters and prolong the service life of the assembly, can adaptively adjust the air cooling intensity according to the size of the magnetic ring, realizes quick cooling of the magnetic ring to prevent failure, and ensures the consistency of the magnetizing quality and the magnetic property of the magnetic ring through the magnetic property detection and continuous disqualification early warning function after magnetization.

Inventors

  • CAO JIANJUN
  • ZHU YANG

Assignees

  • 南通和力磁材有限公司

Dates

Publication Date
20260512
Application Date
20260309

Claims (8)

  1. 1. The multipolar magnetizing device of the magnetic ring comprises a base (1) and a PLC (programmable logic controller) 2 fixed on the base (1), and is characterized by further comprising a magnetizing assembly 3, a positioning and transferring assembly 4 and an air cooling and cooling assembly 5, wherein the magnetizing assembly 3, the positioning and transferring assembly 4 and the air cooling and cooling assembly 5 are all fixed on the base (1), and the air cooling and cooling assembly 5 is positioned under the magnetizing assembly 3 and is used for rapidly cooling the magnetizing assembly 3 and the magnetized magnetic ring; a magnetization intensity detection assembly (6) is further fixed on one side of the bottom of the magnetization assembly (3), and the magnetization intensity detection assembly (6) is positioned on one side of the bottom of the air cooling assembly (5) and is used for detecting the magnetic field intensity of the magnetized magnetic ring; the PLC (2) enables the size of the magnetic ring fed back by the positioning and transferring assembly (4) to be positively correlated with the working power of the magnetizing assembly (3) and the air cooling assembly (5); The upper end of the base (1) is also fixed with a positioning column (7), and the positioning column (7) is coaxially arranged with the magnetizing component (3) and the air cooling component (5).
  2. 2. The multipole magnetizing device of the magnetic ring according to claim 1, characterized in that the magnetizing assembly (3) comprises a fixed ring (31), the outer wall of the fixed ring (31) is uniformly and fixedly connected with a plurality of support plates (32), the support plates (32) are fixed on the base (1), a plurality of pairs of magnetizing pole heads (33) are uniformly distributed on the inner wall of the fixed ring (31), one pair of magnetizing pole heads (33) refers to two magnetizing pole heads (33) which are symmetrical in diameter of the fixed ring (31), a magnetizing coil (34) is wound outside the magnetizing pole heads (33), insulating resin (35) is filled between two adjacent magnetizing pole heads (33), and a separation partition plate (36) is embedded between the side walls of one end, far away from the fixed ring (31), of each adjacent two magnetizing pole heads (33).
  3. 3. The multipole magnetizing device of the magnetic ring according to claim 1, characterized in that the positioning and transferring assembly (4) comprises an electric lifting rod (41) fixed at the upper end of the base (1), a top movable end of the electric lifting rod (41) is fixedly connected with a mounting plate (42), one end surface of the mounting plate (42) is rotatably sleeved with a supporting tube (43), the upper end of the mounting plate (42) is fixedly provided with a motor rotating assembly (44) for driving the supporting tube (43) to rotate, the outer wall of the lower end of the supporting tube (43) is uniformly and fixedly connected with a plurality of electric pushing rods (45), the movable end of the electric pushing rods (45) far away from one end of the supporting tube (43) is fixedly connected with a U-shaped inner supporting plate (46), and the tube wall of the supporting tube (43) is also fixedly connected with a miniature laser range finder (47) which is arranged opposite to one of the U-shaped inner supporting plate (46).
  4. 4. The multipolar magnetization device of magnetic ring according to claim 2, characterized in that, air-cooled cooling component (5) includes cavity ring (51), the lower extreme of cavity ring (51) is fixed on base (1) through many spinal branch daggers (52), the top of cavity ring (51) is evenly fixed and is linked together a plurality of forced air cooling section of thick bamboo first (53), and a plurality of forced air cooling section of thick bamboo first (53) are located a plurality of respectively magnetization utmost point head (33) under, the inboard of cavity ring (51) is evenly fixed and is linked together a plurality of forced air cooling section of thick bamboo second (54), all install automatically controlled valve (55) on forced air cooling section of thick bamboo first (53) and the forced air cooling section of thick bamboo second (54), the lateral wall of cavity ring (51) is still fixed and is linked together cold air pipe (56), the one end that hollow ring (51) were kept away from to cold air pipe (56) is connected with air-cooler (57), air-cooler (57) are fixed on base (1).
  5. 5. A multipolar magnetizing device of a magnetic ring according to claim 3, characterized in that the top of the positioning column (7) is provided with a round head structure, the inner diameter of the supporting tube (43) is matched with the outer diameter of the positioning column (7), the inner side of the lower end of the supporting tube (43) is provided with a conical flaring structure, and the outer side of the positioning column (7) and the inner side of the supporting tube (43) are both coated with a polytetrafluoroethylene coating.
  6. 6. The multipole magnetizing apparatus of the magnetic ring according to claim 4, characterized in that the magnetization detecting assembly (6) comprises an electric telescopic rod (61) fixedly inserted on the side wall of the supporting plate (32), a fluxgraph (62) is fixedly connected to the moving end of the electric telescopic rod (61), and the fluxgraph (62) is located on one side of the bottom of the hollow ring (51).
  7. 7. A multipole magnetizing device of a magnetic ring according to claim 4, characterized in that the support column (52) has a height greater than the height of the magnetic ring to be detected, enabling the cooled magnetic ring to be moved further to one side of the magnetization detecting assembly (6).
  8. 8. A multipolar magnetizing device of a magnetic ring according to claim 3, characterized in that the side walls of the vertical parts of the U-shaped inner supporting plates (46) are provided with a cambered surface structure, and a plurality of anti-skid lines are provided at the corresponding cambered surfaces.

Description

Multipolar magnetization device of magnetic ring Technical Field The invention belongs to the technical field of magnetizing equipment, and particularly relates to a multipolar magnetizing device of a magnetic ring. Background With the rapid development of industries such as new energy automobiles, industrial servo systems, high-precision sensors and the like, the market demand for multipolar magnetic rings is increasing, and strict requirements are put on indexes such as magnetic pole uniformity, magnetic property consistency, production efficiency and the like of the magnetic rings. At present, a magnetic ring multipolar magnetizing device in the prior art generally comprises a power supply system, a magnetizing coil, a common clamp, a simple cooling module and a basic detection unit, and the working principle of the magnetic ring multipolar magnetizing device is that pulse current is released through an energy storage capacitor, so that the magnetizing coil generates a strong magnetic field, a magnetic ring placed in the clamp is magnetized, and the magnetic ring can be taken off after simple cooling and sampling detection are completed. However, the existing magnetic ring multipole magnetizing device still has a plurality of technical defects in the practical application process, and the production requirement of the high-precision magnetic ring is difficult to meet: 1. The existing magnetic ring clamping is mostly of a manual or simple mechanical structure, the magnetic ring is difficult to accurately install at the center of the clamp, so that coaxiality deviation of the magnetic ring and the magnetizing assembly is large, a magnetic field path is deviated, the magnetizing effect is directly affected, meanwhile, the working power of the magnetizing assembly is a fixed value, self-adjustment cannot be carried out according to the size of the magnetic ring confirmed in the clamping process, for a large-size magnetic ring, the magnetic field penetrating power is insufficient due to insufficient power, the magnetic domains inside and outside the magnetic ring cannot be fully aligned, and the magnetic performance is greatly reduced; 2. After long-time working, the temperature rise of the magnetizing coil is easy to exceed 40 ℃, so that the magnetic field intensity is attenuated, the stability of magnetizing parameters is influenced, the service life of a magnetizing assembly is shortened, the large-size magnetic ring is difficult to drop to a safety threshold value in a short time due to large heat capacity, the failure problems such as thermal demagnetization and cracking are easy to occur, the magnetic domain arrangement stability is damaged, and the consistency of magnetic performance is reduced; 3. at present, the detection of a magnetized magnetic ring is mostly sampling detection, the detection dimension is limited, key indexes such as magnetic flux density, polarity distribution and uniformity on the surface of the magnetic ring are difficult to be covered on the whole surface, unqualified products are easy to flow into the market, and meanwhile, when the magnetization degree of a plurality of continuous magnetic rings is unqualified, a signal cannot be fed back in time to remind a worker to check the performance problem of a magnetization assembly, batch unqualified products are easy to be accumulated, and the production quality and the production efficiency are seriously influenced. Disclosure of Invention The present invention aims to solve the above problems and provide a multipole magnetizing device of a magnetic ring. The multipolar magnetizing device of a magnetic ring, including base and PLC controller fixed on base, also include magnetizing assembly, positioning transfer assembly and air cooling assembly, said magnetizing assembly, positioning transfer assembly and air cooling assembly are all fixed on base, the said air cooling assembly is located under magnetizing assembly, cool down magnetizing assembly and magnetic ring after magnetizing fast; a magnetization intensity detection assembly is further fixed on one side of the bottom of the magnetization assembly, and the magnetization intensity detection assembly is positioned on one side of the bottom of the air cooling assembly and is used for detecting the magnetic field intensity of the magnetized magnetic ring; The PLC controller enables the size of the magnetic ring fed back by the positioning and transferring assembly to be positively related to the working power of the magnetizing assembly and the air cooling assembly; the upper end of the base is also fixed with a positioning column, and the positioning column is coaxially arranged with the magnetizing component and the air-cooling component. In the multipole magnetizing device of a magnetic ring, the magnetizing assembly comprises a fixed ring, the outer wall of the fixed ring is uniformly and fixedly connected with a plurality of supporting plates, the supporting plates are fixe